Repeatedly blocks same trojan

AUTO PROTEC KEEP COMING  UP, WITH TROGEN. ZEROACCESS.B., TROJAN.GEN, TROJAN.GEN.2,      

TELLS ME TO REBOOT, THEN IT ALL STARTS AGAIN.

 

I HAVE RUN NORTON SCAN, NOTHING. SECURITY HISTORY SAYS “RESOLVED, NO ACTION REQUIRED” BUT IT KEEPS REOCURRING.

 

WHAT IS WRONG WITH NORTON? HOW CAN I FIX IT.? RUNNING XP ON THIS OLDER UNIT.

PLEASE HELP, BILL

 

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